Question 1

Polystyrene with air or gas blown into the solid is the main component in Styrofoam.

Accepted Answer

A) True 
 B)False

Question 2

A thermoplastic polymer can be melted and reshaped or heated and bent.

Accepted Answer

A) True 
 B)False  True

Question 3

Ceramics are usually formed by melting and then solidifying inorganic substances such as clays.

Accepted Answer

A) True 
 B)False

Question 4

What is the name of the amide bond between amino acids?

Accepted Answer

A)  Polyamide bond
B)  Polyamine bond
C)  Polyamino acids bond
D)  Protein bond
E)  Peptide bondF) B) and D)
G) A) and D) E

Question 5

___________ ____________ and ___________________ are polymers that have been used in total joint replacements.

Accepted Answer

Polymethyl...

Question 6

Which one of these molecules could not serve as a monomer for an addition polymer?

Accepted Answer

A)  ClCH=CH2
B)  H2C=CH-CN
C)  H2C=CH-C6H5
D)   2 
B)  H2C=CH-CN 
C)  H2C=CH-C6H5 
D)     
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E)   2 
B)  H2C=CH-CN 
C)  H2C=CH-C6H5 
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) None of the above
G) A) and B)

Question 7

What type of polymer is represented by the following repeating segment?

Accepted Answer

A)  Polyamide
B)  Polyester
C)  Polyether
D)  Polyolefin
E)  PolyethyleneF) B) and C)
G) C) and E)

Question 8

The functional group found in proteins is called a (an)

Accepted Answer

A)  amide.
B)  carboxylic acid.
C)  amine.
D)  amino acid.
E)  dipeptide.F) A) and E)
G) D) and E)

Question 9

What is one of the most common uses of polyvinyl chloride?

Accepted Answer

A)  2-L soda bottles
B)  Styrofoam cups
C)  Plastic pipes
D)  Plastic food bags
E)  Plastic garbage cansF) C) and D)
G) D) and E)

Question 10

Discuss modern materials used in medical applications.

Accepted Answer

Replacement joints,dental impl...

Question 11

Liquid crystals are anisotropic,because the properties they display depend on the direction (orientation)of the measurement.

Accepted Answer

A) True 
 B)False

Question 12

Which one of these choices is the general structural formula of an amino acid?

Accepted Answer

A)   2-NH2 
C)     
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B)  R-CH2-NH2
C)   2-NH2 
C)     
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D)   2-NH2 
C)     
D)    " class="answers-bank-image d-inline" rel="preload" >E) A) and B)
F) A) and C)

Question 13

What name is given to the polymers whose shape is determined as part of the chemical process that formed the polymer?

Accepted Answer

A)  Flex polymers
B)  Thermal polymers
C)  T-polymers
D)  Thermoplastic polymers
E)  Thermosetting polymersF) A) and D)
G) B) and E) E

Question 14

What name is given to a polymer where all of the substituents (i.e.,the R groups) are in the same relative orientation (i.e.,on the same side of the polymer chain) ?

Accepted Answer

A)  Siamese
B)  Atactic
C)  Siamo
D)  Isotactic
E)  SyndiotacticF) A) and E)
G) A) and C)

Question 15

Which type of polymerization reaction involves the bonding of monomer molecules by the movement of electrons from a multiple bond into new single bonds between molecules?

Accepted Answer

A)  Addition polymerization
B)  Condensation polymerization
C)  Radical polymerization
D)  Crosslinking polymerization
E)  Catalytic polymerizationF) B) and E)
G) A) and C)

Question 16

Liquids are anisotropic,because their properties are independent of the axis of testing.

Accepted Answer

A) True 
 B)False

Question 17

What name is given to a polymer in which the substituents alternate positions along the polymer chain?

Accepted Answer

A)  Rotatory
B)  Atactic
C)  Swapper
D)  Isotactic
E)  SyndiotacticF) B) and E)
G) A) and E)

Question 18

A(n)_______________ liquid crystal contains molecules ordered in one dimension only.

Accepted Answer

The answer of A(n)_______________ liquid crystal contains molecules ordered in...

Question 19

What is a material called that can stretch or bend and then return to its original shape as long as certain limits are not exceeded?

Accepted Answer

A)  Glue
B)  Elongater
C)  Extender
D)  Flexi-polymer
E)  ElastomerF) A) and B)
G) A) and C)

Question 20

Which monomer,when polymerized,results in the polymer polystyrene?

Accepted Answer

A)  CF2=CF2
B)  CCl2=CF2
C)  C6H5-CH=CH2
D)  CH3CH=CH2
E)  CH3CH=CH2CH3F) A) and B)
G) C) and E)

Exam 12: Modern Materials

Polystyrene with air or gas blown into the solid is the main component in Styrofoam.

Correct AnswerverifiedShow Answer

A thermoplastic polymer can be melted and reshaped or heated and bent.

Correct AnswerverifiedTrue

Ceramics are usually formed by melting and then solidifying inorganic substances such as clays.

Correct AnswerverifiedShow Answer

What is the name of the amide bond between amino acids?

Correct AnswerverifiedE

___________ ____________ and ___________________ are polymers that have been used in total joint replacements.

Correct AnswerverifiedPolymethyl...View AnswerShow Answer

Which one of these molecules could not serve as a monomer for an addition polymer?

Correct AnswerverifiedShow Answer

What type of polymer is represented by the following repeating segment?

Correct AnswerverifiedShow Answer

The functional group found in proteins is called a (an)

Correct AnswerverifiedShow Answer

What is one of the most common uses of polyvinyl chloride?

Correct AnswerverifiedShow Answer

Discuss modern materials used in medical applications.

Correct AnswerverifiedReplacement joints,dental impl...View AnswerShow Answer

Liquid crystals are anisotropic,because the properties they display depend on the direction (orientation)of the measurement.

Correct AnswerverifiedShow Answer

Which one of these choices is the general structural formula of an amino acid?

Correct AnswerverifiedShow Answer

What name is given to the polymers whose shape is determined as part of the chemical process that formed the polymer?

Correct AnswerverifiedE

What name is given to a polymer where all of the substituents (i.e.,the R groups) are in the same relative orientation (i.e.,on the same side of the polymer chain) ?

Correct AnswerverifiedShow Answer

Which type of polymerization reaction involves the bonding of monomer molecules by the movement of electrons from a multiple bond into new single bonds between molecules?

Correct AnswerverifiedShow Answer

Liquids are anisotropic,because their properties are independent of the axis of testing.

Correct AnswerverifiedShow Answer

What name is given to a polymer in which the substituents alternate positions along the polymer chain?

Correct AnswerverifiedShow Answer

A(n)_______________ liquid crystal contains molecules ordered in one dimension only.

Correct AnswerverifiedShow Answer

What is a material called that can stretch or bend and then return to its original shape as long as certain limits are not exceeded?

Correct AnswerverifiedShow Answer

Which monomer,when polymerized,results in the polymer polystyrene?

Correct AnswerverifiedShow Answer

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True

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E

_ and _________ are polymers that have been used in total joint replacements.

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Polymethyl...
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Replacement joints,dental impl...
View Answer

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E

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